Join sub-catchment centroid using line and import attributes of it using QGIS Model builder

Asked Mar 10 '22 at 09:35

Active Mar 14 '22 at 07:47

Viewed 55 times

Input Data: I have a sub catchment polygon shapefile, which contain following details

The link to the input data: enter link description here

Workflow that I wish to accomplish:

Create centroid point shapefile of the sub-catchment (vector-->Geometry-->centroid, which take the properties of the polygon shapefile automatically)

Create a line shapefile and connect the centroid of the sub-catchments - manually (How sub-catchments are connected to each other)

Now I am expected to create an “TG_TO” attribute in this centroid shapefile layer, how these sub-catchments are connected to each other. For example, like below

Is there any way to automate this in QGIS model builder ?

edited Mar 14 '22 at 07:47

asked Mar 10 '22 at 09:35

maiyourathaan

How do you create the line layer? – Erik Mar 10 '22 at 09:49
I create the line layer manually – maiyourathaan Mar 10 '22 at 09:55
https://gis.stackexchange.com/questions/325464/fill-attribute-table-on-feature-creation-based-on-intersection-with-other-layer - this should give you an idea how to achieve your goal. – Erik Mar 10 '22 at 10:45
@Erik I have already comment on this post to elaborate bit more about the use of that script, I wanted to know how that function works and in which layer (point or line) – maiyourathaan Mar 10 '22 at 11:02
@M Bain Can you please help on this issue – maiyourathaan Mar 14 '22 at 07:49

0 Answers0